<div style="display: flex; height: 40px; align-items: center;">
  <b-button type="primary">主要按钮</b-button>
  <b-divider vertical></b-divider>
  <b-button>默认按钮</b-button>
  <b-divider vertical></b-divider>
  <b-button type="danger">成功按钮</b-button>
</div>